ATE315782T1 - KARL FISCHER REAGENT - Google Patents

KARL FISCHER REAGENT

Info

Publication number
ATE315782T1
ATE315782T1 AT01125451T AT01125451T ATE315782T1 AT E315782 T1 ATE315782 T1 AT E315782T1 AT 01125451 T AT01125451 T AT 01125451T AT 01125451 T AT01125451 T AT 01125451T AT E315782 T1 ATE315782 T1 AT E315782T1
Authority
AT
Austria
Prior art keywords
karl fischer
reagent
fischer reagent
imidazole
determination
Prior art date
Application number
AT01125451T
Other languages
German (de)
Inventor
Katrin Dr Schoeffski
Helga Hoffmann
Original Assignee
Sigma Aldrich Laborchemikalien
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7663358&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE315782(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sigma Aldrich Laborchemikalien filed Critical Sigma Aldrich Laborchemikalien
Application granted granted Critical
Publication of ATE315782T1 publication Critical patent/ATE315782T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
    • G01N31/168—Determining water content by using Karl Fischer reagent

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Saccharide Compounds (AREA)

Abstract

A reagent for the determination of water according to the Karl Fischer method contains as a base a mixture of imidazole and a substituted imidazole, with the reagent being preferably present as a one component reagent.
AT01125451T 2000-11-15 2001-11-05 KARL FISCHER REAGENT ATE315782T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10056547A DE10056547A1 (en) 2000-11-15 2000-11-15 Karl Fischer reagent

Publications (1)

Publication Number Publication Date
ATE315782T1 true ATE315782T1 (en) 2006-02-15

Family

ID=7663358

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01125451T ATE315782T1 (en) 2000-11-15 2001-11-05 KARL FISCHER REAGENT

Country Status (6)

Country Link
US (1) US6946298B2 (en)
EP (1) EP1207389B2 (en)
JP (1) JP4245289B2 (en)
AT (1) ATE315782T1 (en)
DE (2) DE10056547A1 (en)
NO (1) NO20015570L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336571B3 (en) * 2003-08-08 2005-01-27 Merck Patent Gmbh Process to prepare water to a standard required for use in association with furnace technology or the Karl-Fischer process
CA2498804A1 (en) * 2004-03-02 2005-09-02 Em Industries, Inc. Volumetric karl-fischer titration with stabilized solvent
CN101256178B (en) * 2008-04-17 2011-08-31 上海化学试剂研究所 Non-pyridine karl fischer agent as well as preparing method
CN102590443A (en) * 2012-03-07 2012-07-18 江苏永华精细化学品有限公司 Safe stable type Karl Fischer reagent and preparation method thereof
JP6252928B2 (en) * 2013-02-28 2017-12-27 平沼産業株式会社 Titrant
CN108426977A (en) * 2018-05-31 2018-08-21 中国神华能源股份有限公司 The test agent and test method of water content in aldehyde ketone
US20200033307A1 (en) * 2018-07-25 2020-01-30 Honeywell International Inc. Method of determining an amount of water in a sample using a derivative of imidazole and a hydrogen halide donor
US11714072B2 (en) * 2019-03-28 2023-08-01 Honeywell International Inc. Reagent compositions and method for Karl Fischer titration
JP7435172B2 (en) 2020-03-31 2024-02-21 三菱ケミカル株式会社 Reagent and moisture measurement method
US11885782B2 (en) * 2020-10-29 2024-01-30 Honeywell International Inc. Method of determining an amount of water in a sample using a sulfonic acid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039511A1 (en) 1980-10-20 1982-05-19 Riedel-De Haen Ag, 3016 Seelze TITRATION AGENTS AND ITS USE
US4378972A (en) * 1980-03-05 1983-04-05 Riedel-De Haen Aktiengesellschaft Titration agent and method for using same
DE3521544A1 (en) * 1985-06-15 1986-12-18 Merck Patent Gmbh, 6100 Darmstadt SOLVENT FOR WATER DETERMINATION ACCORDING TO KARL-FISCHER
DE3904992A1 (en) * 1989-02-18 1990-08-23 Riedel De Haen Ag REAGENT FOR COULOMETRIC WATER DETERMINATION
DE4421453A1 (en) * 1994-06-18 1995-12-21 Riedel De Haen Ag Karl Fischer reagent
JP3473324B2 (en) * 1996-06-25 2003-12-02 三菱化学株式会社 Electrolyte for Karl Fischer Coulometric Titration and Method for Measuring Moisture Using the Electrolyte
DE19740965A1 (en) 1997-09-17 1999-03-18 Rdh Laborchemikalien Gmbh & Co Karl Fischer reagent
SE9901857D0 (en) * 1999-05-21 1999-05-21 Anders Cedergren Karl Fischer reagent

Also Published As

Publication number Publication date
JP4245289B2 (en) 2009-03-25
DE60116557T2 (en) 2006-09-21
DE60116557T3 (en) 2009-09-17
NO20015570D0 (en) 2001-11-14
EP1207389A1 (en) 2002-05-22
JP2002202299A (en) 2002-07-19
US6946298B2 (en) 2005-09-20
EP1207389B1 (en) 2006-01-11
EP1207389B2 (en) 2009-02-18
DE10056547A1 (en) 2002-05-23
DE60116557D1 (en) 2006-04-06
NO20015570L (en) 2002-05-16
US20020127726A1 (en) 2002-09-12

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties